Spyderco Pocket Stone 303F (Fine)
The Spyderco Pocket Stone is a small rectangular pocket stone for portable field use and honing small items.
Pocket Stones are available in fine grit (this listing) and medium grit. The 303F Fine Grit Pocket Stone fits in the palm and is packaged in a leather carrying case. It is autoclave safe (ideal for dental tool sharpening) or can be cleaned with a plastic scouring pad and powdered abrasive cleanser.
1" x 5" x 1/8" (25mm x 127mm x 3.2mm)
Information from Spyderco